Calendar



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FIP: eine xa C369L5 (No Model.)

E. C. JAYNE.

CALENDAR. N0. 369,945. Patented Sept. 13. 1887.

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L e Swanton 3 ci G G WwW/e 29 @mil/mosey 0 UNITED STATES PATENT OFFICEO EBELT C. J'AYNII, OF PHILADELPHIA, PEPNSYLVANIA.

CALENDAR.

SPECIFICATION forming part of Letters Patent No.369,945, dated September 13,1887.

(No model.)

To (LZZ whom, z't may concern:

Be it known that I, Enf-:N C. JAYNE, aeitizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented an Improved Calendar, of which the following is a specification.

The object of my invention is to provide a calendar with characters so arranged that the phase of moon and duration of moonlight for any hour of the night and for any day of the month can be ascertained at a glance.

The accompanying drawing represents sufficient of a ealendarto illustrate my invention.

I form the calendar in sections, each section representing a month, and each month is separated into days of the weeks, as illustrated. For convenience of reference, I prefer to separate the month into sections of weeks spaced from each other, as shown. I form a column representing the hours of moonlight, and this column is divided into sections representing the hours ofthe night-that is, from six p. 1n. to six a. m., inclusive. At the intersection of each division of days with the sections representing each hour of the night, I form a character indicating either that the moon is visible or invisible, and, if visible,the phase ofthe moon-whether full, waxing, or waning, as the ease may be.

rlhe characters that I prefer to use are as follows: For the new moon, when not Sullieiently strong to give an appreciable light, I use a circle with a black dot in the center. For a full moon and visible waxing and waning moons, I use a disk or sections of a disk, and for the hours that the moon is invisible I use a black rectangle, as shown. As an example take the first day of the month in the example illustrated. For the first two hours of the night the moon is not visible, and this I represent by the dark squares or rectangles; but after the second hour a full moon becomes visible, and this continues till six a. m., as represented hy complete disks. The indications for the second day of the month are that during the iirst three hours and a half no moon is visible, and for the rest ofthe night a wailing moon will be visible. (Indicated h v three fourths ofa disk.) Now take the fifteenth day ofthe month-a Sunday in the example illustrated. For the iii-st two and a hall hours of the nightthere is a new moon; but its light is n'ot strong enough to be appreciable. This is indicated on the calendar by the circle with a black dot in the center. The balance ol' the night the moon is invisible, and is indicated by the black squares. On the night following (Monday) we tind a quarter waxing moon for the first three hours and a half, and the rest ot` the night the moon is invisible.

It will thus he seen that by a glance at the calendar the duration ot' moonlight and the phase ot' moon can be ascertained for any hour ofthe night and day oi' the month.

I have shown the disk representing the moon on the calendar divided into quarters, halves, and three-quarters, waxing and waning; but it will be understood that in larger calendars the divisions of the disks representing the moon may be eighths or smaller divisions, this dependinggreatly on the size of the calendar and the desired iineness of the gradnations.

I claim as my invention- A calendar provided with divisions foreach day ot` the month, separated into sections for the hours of the night, the sections representing those hours in which the moon is visible, having characters indicating the phases of the moon, substantially as described.

In testimony whereof I have signed my name to this specification in the presence ot' two suhseribing witnesses.

161216K C. .TAYNE Witnesses:

VILLTAM l). CoNNi-m, HARRY SMITH. 

